Figure 4. Time course of blood markers associated to muscle damage before and after a full-body resistance training session with oral caffeine intake (CAF) or placebo (PLA) in resistance-trained men habituated to caffeine. Data are presented as mean ± standard deviation. CK - creatine kinase; LDH – lactate dehydrogenase; PRE-SUPP – prior to supplementation; POST-SUPP – 60 minutes after supplementation; POST-EX – immediately after exercise; +1h – 60 minutes after exercise; +24 h – 24 hours after exercise. *significant difference between timepoints (p < 0.050).